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Cisco Catalyst 4500 Series Command Reference Guide

Cisco Catalyst 4500 Series
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Catalyst 4500 Series Switch Cisco IOS Command Reference—Release IOS XE 3.4.0SG and IOS 15.1(2)SG)
OL-27596 -01
Chapter 2 Cisco IOS Commands for the Catalyst 4500 Series Switches
ip arp inspection trust
ip arp inspection trust
To set a per-port configurable trust state that determines the set of interfaces where incoming ARP
packets are inspected, use the ip arp inspection trust command. To make the interfaces untrusted, use
the no form of this command.
ip arp inspection trust
no ip arp inspection trust
Syntax Description This command has no arguments or keywords.
Defaults This command has no default settings.
Command Modes Interface configuration mode
Command History
Examples This example shows how to configure an interface to be trusted:
Switch# config terminal
Switch(config)# interface fastEthernet 6/3
Switch(config-if)# ip arp inspection trust
Switch(config-if)# end
To verify the configuration, use the show form of this command:
Switch# show ip arp inspection interfaces fastEthernet 6/3
Interface Trust State Rate (pps) Burst Interval
--------------- ----------- ---------- --------------
Fa6/3 Trusted None 1
Switch#
Related Commands
Release Modification
12.1(19)EW Support for this command was introduced on the Catalyst 4500 series switch.
Command Description
show ip arp inspection Displays the status of dynamic ARP inspection for a
specific range of VLANs.

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Cisco Catalyst 4500 Series Specifications

General IconGeneral
SeriesCatalyst 4500 Series
CategorySwitch
Layer SupportLayer 2, Layer 3
Form FactorModular chassis
StackableNo
Chassis Slots3, 6, 7, 10
Power Supply OptionsAC, DC
RedundancyPower supply, Supervisor engine
Network ManagementCisco IOS Software CLI, SNMP, Cisco Prime Infrastructure
FeaturesSecurity, QoS
Port DensityUp to 384 ports per chassis
Security Features802.1X, ACLs, DHCP Snooping, Dynamic ARP Inspection, IP Source Guard
Supervisor Engine8-E

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